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        <h1 class="page-header">代码<small> &lt;code&gt; 与 &lt;pre&gt; 标签的使用</small></h1>

        <p>为<code>&lt;h1&gt;</code> 标签加一个<code>.page-header</code>，可以为内容添加合适的边距，并且在下方显示一条灰色的边线</p>

        <pre>
            javascript:void(0);javascript:void(0);
            javascript:void(0);javascript:void(0);
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